Get a single item from the inventory

I have a game where items are added to the player's PlayFab inventory rather frequently. After an item has been added, the game will request the player's inventory then store a cached version of all items. When a player has a few hundred items in the inventory, fetching their whole inventory uses a lot of data. Instead of having to re-download the whole inventory, it would be really convenient and save a lot of data if there was a way to request a single ItemInstance (or possibly a list of ItemInstances) using an ItemInstanceID or some other identifier.